Mobil Delvac 1630, 1640, and 1650 are high-performance monograde diesel engine oils formulated from advanced technology base oils and a balanced additive system. They are recommended by ExxonMobil for use in intercooled, turbo-charged engines operating under severe on and off-highway conditions as well as a wide range of applications where a monograde lubricant is recommended.
Property | 1630 | 1640 | MOBIL DELVAC 1650 |
Grade | SAE 30 | SAE 40 | SAE 50 |
Ash, Sulfated, mass%, ASTM D874 | 1.4 | 1.4 | 1.4 |
Density @ 15.6 C, g/cm3, ASTM D4052 | 0.89 | 0.89 | 0.896 |
Flash Point, Cleveland Open Cup, °C, ASTM D92 | 230 | 239 | 290 |
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 | 11.5 | 14.7 | 19.5 |
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445 | 90 | 132 | 202 |
Pour Point, °C, ASTM D97 | -30 | -21 | -18 |
Total Base Number, mgKOH/g, ASTM D2896 | 12 | 12 | 12 |
Viscosity Index, ASTM D2270 | 117 | 112 | 110 |